Robin Williams Through the Years

Robin Williams is seen wearing a letter jacker during his senior year at Redwood High School in Larkspur, Calif., 1969.

Seth Poppel/Yearbook Library

Robin Williams is seen wearing a letter jacker during his senior year at Redwood High School in Larkspur, Calif., 1969.

Seth Poppel/Yearbook Library

Robin Williams and his former wife Valerie Williams after "Saturday Night Live" Taping in New York City, Nov. 11, 1978.

Ron Galella/Getty Images

This Nov. 12, 1979 file photo shows actor-comedian Robin Williams, third from right, dressed as a cheerleader with the Broncos' Pony Express cheerleaders during the filming of an episode of "Mork & Mindy," in Denver.

AP Photo

Robin Williams during People For the American Way gala birthday dinner at Beaux Arts Puck Building in New York City, New York on Oct. 24, 1985.

Ron Galella/Getty Images

Robin Williams is seen at the Academy Awards, Hollywood, Calif., March 25, 1996.